Section 6. Frequently Asked Questions
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PX-820 Installation and Users Manual
Q: What's the difference between "double layer" and "dual layer"?
A: Nothing, really. It's simply a difference of opinion within the industry
about how to label media and drive capabilities. DVD+R DL (as named by
the DVD+RW Alliance) stands for DVD+R Double Layer. DVD-R DL
(from the DVD Forum) stands for DVD-R Dual Layer. Whether your DL
media is labeled "double layer" or "dual layer," the PX-820 can handle it.